Airtac PL L Connector PL604-S
SUS304 stainless variant (-S)The AirTAC Airtac PL L Connector PL604-S is a genuine male elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale elbow
- SeriesPL
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PL L Connector PL604-S
The PL604-S is AirTAC's PL male elbow one-touch fitting in the stainless-stud variant, turning Dia 6 mm soft nylon or polyurethane tubing through 90 degrees into a 1/2 in PT male port. Push the tube home and the internal chuck grips it for a pressure-tight joint; press the POM release ring to let the spring gasket free the tube again. The 90-degree body lets the line leave the port sideways, so the tube never has to bend tightly at the connection.
The -S suffix is specific on this family: the elbow body stays PBT and the male STUD is the SUS304 stainless part. That matters because the stud is the surface most exposed to washdown spray, salt air and condensation in the port it screws into. Ratings are identical to the standard PL line - 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof, -20 to +70 C - so the stainless version is never re-rated. The 1/2 in thread arrives with sealant applied.
Airtac PL L Connector PL604-S Technical Specifications
| Model | Airtac PL L Connector PL604-S |
|---|---|
| Type | Male elbow |
| Series | PL |
| Connection | Push-in one-touch |
| Body material | Stainless steel 304 (-S variant) |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. Stainless (-S): SUS304 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PL L Connector PL604-S
| PL | Male elbow. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
| -S | Stainless-steel body. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PL L Connector PL604-S Is Used
Dairy bottling line washdown
At cylinder ports on a bottling conveyor that is hosed down each shift, the SUS304 stud resists the caustic rinsewater that would pit a plain brass thread over a season.
Aquaculture and marine deck actuators
On hatch-feed gates and deck-mounted air cylinders in salt-laden air, the stainless stud thread into the manifold is the failure point the -S variant removes.
Packaging machine tight guarding
Inside close-fitting guarding on a cartoning machine, the 90-degree elbow drops the Dia 6 tube sideways from the cylinder port so the line clears the guard sheet without a sharp bend.
Is the Airtac PL L Connector PL604-S the Right Part?
On the 1/2 in PT port ladder for the PL series, Dia 6 is the smallest tube offered - there is no Dia 4 option at this thread, so step down the thread instead: PL603-S (3/8 in) or PL602-S (1/4 in) cover smaller ports on the same Dia 6 tube. Going the other way, PL804-S is the next size up on 1/2 in when the run feeds an 8 mm actuator. Note the tube bore is exact: the Dia 6 chuck will not hold 1/4 in (6.35 mm) hose, which is fractionally larger.
Choose the PL elbow shape over a straight PC connector whenever a cylinder or valve port faces a wall, guard or machine frame and a straight stem would kink the tube or foul the guard. The 1/2 in port suits larger manifold faces and primary air drops; match the thread form to the existing port standard before ordering.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PL L Connector PL604-S FAQ
It joins Dia 6 mm tube to a 1/2 in PT male thread at a 90-degree angle. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure is -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the operating temperature range is -20 to +70 C. It is the resin-profile fitting: PBT elbow body with a SUS304 stainless male stud, POM release button and chuck, aluminium-alloy guide, stainless spring gasket and NBR O-ring. Soft nylon or polyurethane tubing only.
No. On the PL family the -S suffix converts only the male stud to SUS304; the elbow body remains the standard PBT material and every dimension matches the standard PL604. If you need the whole body in stainless 304, AirTAC offers that construction on the PC and POC straight-connector families instead. The pressure, vacuum and temperature figures are unchanged by the -S option, so no re-rating is needed when substituting it for a standard PL604.
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